.\" Copyright (c) 2010 Kai Wang
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.\" $Id: dwarf_tag.3 3640 2018-10-14 14:09:13Z jkoshy $
.\"
.Dd April 14, 2010
.Dt DWARF_TAG 3
.Os
.Sh NAME
.Nm dwarf_tag
.Nd retrieve the tag associated with a DWARF debugging information entry
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft int
.Fn dwarf_tag "Dwarf_Die die" "Dwarf_Half *tag" "Dwarf_Error *err"
.Sh DESCRIPTION
Function
.Fn dwarf_tag
retrieves the tag associated with the debugging information entry
referenced by argument
.Ar die ,
and stores it into the location pointed to by argument
.Ar tag .
.Pp
If argument
.Ar err
if non-NULL, it will be used to return an error descriptor in case of
an error.
.Sh RETURN VALUES
On success, function
.Fn dwarf_tag
returns
.Dv DW_DLV_OK .
In case of an error, it returns
.Dv DW_DLV_ERROR
and sets argument
.Ar err .
.Sh ERRORS
Function
.Fn dwarf_tag
can fail with the following error:
.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
.It Bq Er DW_DLE_ARGUMENT
Argument
.Va die
or
.Va tag
was NULL.
.El
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_die_abbrev_code 3 ,
.Xr dwarf_diename 3 ,
.Xr dwarf_dieoffset 3
